Creatures of the animal kingdom bicker for their place on the throne in a post-apocalyptic world void of the human race, but soon realize they're slowing transforming into their old human masters. When mankind disappears from the face of the Earth, creatures of the animal kingdom gather to discuss who will replace them on the throne. But soon, the animals realize they're slowly adopting human traits.

Jim's years of experience as a zookeeper and guard haven't prepared him for the boy who climbs into the lion's den - or the animals' unnatural behavior afterwards.

After his daughter is killed by diseased dogs, a father and his friend try to kill all the pets in the town to prevent the same tragedy from happening to someone else.

A year after a city council in a small Tokyo town votes to support an abandoned elephant, the old animal and its long-time caretaker mysteriously disappear. A local PR agent attempts to track the pair down.

A naturalist's boyfriend offers to put her elderly dog down, but he finds it difficult as he thinks about his relationship.

After an amateur documentary crew films a pack of African wild dogs on a hunt, the crew members grow increasingly savage and beastlike towards their young female coworker.

A zookeeper describes an incident at the zoo that leaves all of the animals behaving strangely and becoming self-aware.

A researcher and his assistant conduct neuropsychological experiments on dogs with the understanding that the dogs will be terminated immediately after, but the reality of their killing is much more difficult to cope with.

When a middle-aged woman goes on a hike with a man she is seeing, a mastiff attacks the man. The woman wonders whether the dog or the relationship itself is the bigger danger.

A retired U.S. Army colonel develops an unexpected appreciation for the animal life around him, which leads him to make significant changes to his own life.